Question

The velocity of a particle increases from u to v in a time "t" during which it covers a distance "S". If the particle has a uniform acceleration,which one of the following equations does not apply to the motion ?

a) 2 S = (v + u)t

b) a = v -u /t

c) v² = u² - 2aS

d) S = (u + 1/2at)t

Answer 1

Both (a) and (b)

In (b) if it is a = (v - u)/t then..,
The equation which is not applicable is only (a).
All equations given are equation of motion except (a) hence correct option is (a).

Answer 2

C )
cant apply because in the uniform acceleration the v²-u² = 2as 
But dimensionally v² - u² = -2as is not correct